| Value | Category | Cases | |
|---|---|---|---|
| 1 | severe | 19 |
0.4%
|
| 2 | moderate | 216 |
4.1%
|
| 3 | mild | 446 |
8.5%
|
| 4 | not anemic | 4544 |
87%
|
| Sysmiss | 7724 |